You see they are not insulting anyone. They are TRANSLATING the words. Here let me show you.
Main Entry:trans·la·tion
Pronunciation:\tran(t)s-ˈlā-shən, tranz-\
Function:noun
Date:14th century
1: an act, process, or instance of translating: as a: a rendering from one language into another
See that is what translation is. It's not picking and chosing which words should be left in Japanese. It's translating all words to english.